Phot Dna Fingerprinting Research Paper

The discovery of deoxyribonucleic acid, also known as DNA, was a ground breaking discovery for the scientific community. Its discovery made ground breaking impacts that would only prove to be more detrimental to society with time. On top of the high prominence in the scientific field, the discovery would also go on over to make waves in the criminal justice field as well. The discovery of deoxyribonucleic acid was not a discovery made by any one given person, but was instead a collaborative effort made spreading across a widespan of people. Its first discovery would be helmed by Rosalind Franklin and Maurice Wilkins. The tandem duo in the early 1950s who were studying a newly discovered protein structure at that time. Soon after its discovery Franklin would then take a photo graph of the structure through x-ray photography and the photo from that point on would be called “photo- 51”. Photo-51 would be the inspiration behind the discovery of DNA at the hands of two scientists named Francis Crick and James Watson. Through the …show more content…
DNA fingerprinting is a “technique used to establish a link between biological evidence and a suspect in a criminal investigation” (DNA Fingerprinting). It starts with a sample of DNA obtained from a crime scene and then is compared to the DNA that is obtained from a suspect. The DNA is first extracted and then covered with restriction enzymes that produce bands. The bands produced are doubled are then run through gel electrophoresis for separation. The newly separated fragments go from a gel to a membrane and then are radioactively turned to a single form. Then the membrane is covered with a probe and incubate for a given time. Once the time is up the gel is washed to remove the probe and is then exposed to x-ray film. And upon completion a film of the bands must be made showing the DNA typing patterns (How DNA Fingerprinting